- Creating JSON documents from java classes using gson
- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
- setRequestProperty (URLConnection)
- getSharedPreferences (Context)
- FileWriter (java.io)
A specialized Writer that writes to a file in the file system. All write
requests made by calling me
- Stack (java.util)
Stack is a Last-In/First-Out(LIFO) data structure which represents a stack of
objects. It enables u
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.
- HttpServlet (javax.servlet.http)
Provides an abstract class to be subclassed to create an HTTP servlet suitable
for a Web site. A sub
- IOUtils (org.apache.commons.io)
General IO stream manipulation utilities. This class provides static utility
methods for input/outpu
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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